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Click on pictures to enlarge.
Test #1
This test was done in
an Oster toaster oven using one thermometer in the center of the
oven to keep an eye on the temperature. The temperature seemed
at the low side (250 degrees for the first 10 minutes.) The last
10 minutes was the correct temperature of 275 degrees. So the
clay baked for the recommended temperature and time according to
the instructions on the package. The test pieces of clay were
approximately ¼ inch thick and 3 inches long. Here are the
results:
- Prosculpt
Caucasian
Flexed slightly then broke. Seemed to be
the strongest of the 3 that was tested.
- Prosculpt
Light
Snapped easily after very little flex.
- Prosculpt
Baby
Broke easily with virtually no flex.

Click on pictures to enlarge.
Test #2
This test was done in
an Oster toaster oven using one thermometer in the center of the
oven to keep an eye on the temperature. The test pieces of clay
were approximately ¼ inch thick and less than 3 inches long.
They were baked at 275 degrees for 30 minutes. The oven spiked
to around 300 degrees at one time which most likely accounts for
the change/darkening of the colors in certain of the clays. Here
are the results:

- Premo Beige
First attempt: bendable, but would not
break. Very strong clay, however had a lot of moonies. I let
clay rest before second attempt to break. Second attempt: broke
but with quite a bit of force. Was not a clean break like most
of the other clays that broke.

- Prosculpt
Caucasian
First attempt: bendable but wouldn’t
break. Had a marbled look (possibly was not conditioned enough?)
Clay slightly darkened in color. I let clay rest before second
attempt to break. Prosculpt Caucasian is similar to Premo but
broke easily on second attempt. The longer bake time seemed to
strengthen this clay.
- Prosculpt
Light
This clay snapped easily and quickly with
no flex at all. Seems to be the weakest of the Prosculpt clays
and the longer bake time did not strengthen it.
- Prosculpt
Ethnic
First attempt: did not seem as flexible as
the Caucasian color clay, but did flex and not break. I let the
clay rest before second attempt to break. Second attempt: clay
broke easily.
- Prosculpt
Baby
First attempt: more flexible than
Caucasian color clay. Clay flexed and did not break. Prosculpt
baby color clay darkened a lot. I let the clay rest before
second attempt. Second attempt: broke easily.

- Premo mix
I used this mix: 1 lb of Premo beige, 1 oz
of Premo white, 1 oz of Premo ecru, and ¼ package of Fimo Mix
Quick. This required lots of mixing and conditioning. This was a
very flexible and strong mix of clay. It bends almost in half
and will not break. Very nice color retention. Slightly darker
than the Prosculpt Light. *

- UltraLight
Mix (Dark)
Sorry I don’t have the exact ratios for
this mix. That will teach me to write them down when I mix. I
believe it was 1 lb Premo burnt umber, ¼ package of UltraLight,
and 1 oz of black Sculpey granitex (just to make it interesting
LOL). This was very flexible. It will bend almost in half and
not break. *

- UltraLight
Mix (Light)
Sorry I don’t have the exact ratios for
this mix either. LOL. I promise I will be better at documenting
the mixtures in my future tests. These are mixes that I used to
sculpt some dolls and I wrote the ratios on the baggies that I
stored them in and the writing wore off. I believe it was 1 lb
of Prosculpt Caucasian, ¼ package of UltraLight, and 1 oz of
Premo pearl. This mixture was very flexible and strong. It bends
almost in half and will not break. This is a beautiful color and
seems to have stayed the truest of any that I tested during
baking.

- Fimo Classic
Beige
Slightly flexible and strong, but did not
like as much as the UltraLight mixtures. Although it will not
break, you can see stress cracks in the clay.

- Fimo Classic
Beige with Mix Quick
1:1/3 ratio mix. This was a very strong
mix with only slight flexibility. This was a much stronger mix
than the Fimo Classic by itself. No signs of the stress cracks.
*
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